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2026-03-20 - 11:51
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot4.osadl.org (updated Fri Mar 20, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20268213373,6sleep20-21swapper/219:08:182
20060212766,6sleep30-21swapper/319:05:373
200802115105,7sleep10-21swapper/119:05:521
201092114104,7sleep00-21swapper/019:06:150
260042740,1sleep3391ktimersoftd/322:30:173
233812740,1sleep30-21swapper/322:00:183
41112610,0sleep3391ktimersoftd/321:45:123
252022610,1sleep120-21rcuc/123:30:141
17252570,1sleep31726-21unixbench_singl21:10:243
165002560,1sleep10-21swapper/100:20:011
12222560,0sleep00-21swapper/023:05:220
119582560,0sleep20-21swapper/220:25:192
97212550,0sleep10-21swapper/122:15:211
2057599280,27cyclictest0-21swapper/220:30:002
2057599270,26cyclictest0-21swapper/223:23:282
2057099270,3cyclictest0-21swapper/120:30:121
2057099270,26cyclictest0-21swapper/122:48:171
2057099270,26cyclictest0-21swapper/122:09:231
2057099270,26cyclictest0-21swapper/100:21:291
2057599260,25cyclictest0-21swapper/222:15:222
2057099260,25cyclictest0-21swapper/121:39:281
2057099260,25cyclictest0-21swapper/120:56:511
20575992518,7cyclictest0-21swapper/221:06:182
2057099250,24cyclictest0-21swapper/121:14:571
2057099250,24cyclictest0-21swapper/119:15:301
2057099250,24cyclictest0-21swapper/100:04:411
2057599240,23cyclictest0-21swapper/222:35:172
2056699240,23cyclictest0-21swapper/023:13:140
2057599231,3cyclictest0-21swapper/219:22:452
2057599231,2cyclictest21909-21munin-run00:25:002
2057599231,21cyclictest0-21swapper/219:25:362
20570992321,2cyclictest0-21swapper/120:15:481
2056699230,17cyclictest0-21swapper/022:32:330
20575992218,3cyclictest0-21swapper/221:15:312
2057599221,3cyclictest0-21swapper/220:56:122
2057599220,21cyclictest0-21swapper/223:10:102
2057599220,21cyclictest0-21swapper/219:11:062
2057599220,21cyclictest0-21swapper/200:35:022
2057099220,3cyclictest0-21swapper/119:24:331
2057099220,21cyclictest0-21swapper/123:06:341
2057099220,21cyclictest0-21swapper/120:52:541
2057099220,21cyclictest0-21swapper/120:22:361
2057099220,21cyclictest0-21swapper/120:07:481
2057099220,21cyclictest0-21swapper/120:00:331
2057099220,20cyclictest0-21swapper/123:50:201
2057599217,8cyclictest6405-21/usr/sbin/munin20:50:172
2057599210,3cyclictest0-21swapper/222:08:292
2057599210,3cyclictest0-21swapper/220:05:002
2057599210,20cyclictest0-21swapper/223:40:082
2057599210,20cyclictest0-21swapper/223:30:472
2057599210,20cyclictest0-21swapper/223:16:112
2057599210,20cyclictest0-21swapper/223:03:202
2057599210,20cyclictest0-21swapper/221:55:232
2057599210,20cyclictest0-21swapper/219:46:592
2057599210,20cyclictest0-21swapper/200:25:252
2057599210,15cyclictest0-21swapper/220:46:382
20570992119,2cyclictest0-21swapper/120:42:211
20570992118,1cyclictest14918-21sadc21:55:011
20570992117,3cyclictest0-21swapper/122:04:341
20570992114,7cyclictest0-21swapper/123:15:181
2057099210,2cyclictest0-21swapper/123:46:431
2057099210,21cyclictest0-21swapper/122:32:411
2057099210,20cyclictest0-21swapper/123:35:261
2057099210,20cyclictest0-21swapper/123:13:471
2057099210,20cyclictest0-21swapper/123:02:531
2057099210,20cyclictest0-21swapper/121:26:111
2057099210,20cyclictest0-21swapper/119:55:571
2057099210,20cyclictest0-21swapper/119:51:541
2057099210,20cyclictest0-21swapper/119:39:481
2057099210,20cyclictest0-21swapper/100:28:261
20566992119,1cyclictest749-21snmpd23:18:580
20566992119,1cyclictest749-21snmpd20:18:090
20566992119,1cyclictest749-21snmpd00:24:130
20566992118,2cyclictest11781-21sadc20:55:000
20575992018,1cyclictest749-21snmpd23:58:532
20575992018,1cyclictest749-21snmpd22:52:352
20575992018,1cyclictest749-21snmpd22:04:492
20575992018,1cyclictest749-21snmpd21:23:182
20575992018,1cyclictest749-21snmpd20:00:302
20575992018,1cyclictest749-21snmpd19:31:302
20575992018,1cyclictest749-21snmpd00:11:282
20575992018,1cyclictest749-21snmpd00:04:552
20575992017,2cyclictest749-21snmpd22:57:462
20575992016,3cyclictest0-21swapper/223:45:102
20575992016,3cyclictest0-21swapper/222:47:172
20575992016,3cyclictest0-21swapper/221:51:522
2057599201,3cyclictest0-21swapper/221:12:002
20575992013,7cyclictest0-21swapper/223:50:212
2057599200,2cyclictest0-21swapper/221:31:402
2057599200,19cyclictest0-21swapper/223:28:292
20570992018,2cyclictest0-21swapper/100:38:341
20570992018,2cyclictest0-21swapper/100:12:251
2057099200,2cyclictest0-21swapper/122:50:491
2057099200,2cyclictest0-21swapper/119:42:541
2057099200,20cyclictest0-21swapper/122:29:191
2057099200,19cyclictest211ktimersoftd/121:34:011
2057099200,19cyclictest0-21swapper/122:10:481
2057099200,19cyclictest0-21swapper/121:40:111
2057099200,19cyclictest0-21swapper/120:35:481
2057099200,19cyclictest0-21swapper/100:33:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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